Search Linux Wireless

Re: Throughput regression with `tcp: refine TSO autosizing`

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, 2015-02-04 at 12:35 +0100, Michal Kazior wrote:

> > (Or maybe wifi drivers should start to use skb->xmit_more as a signal to end aggregation)
> 
> This could work if your firmware/device supports this kind of thing.
> To my understanding ath10k firmware doesn't.

This is a pure software signal. You do not need firmware support.

Idea is the following :

Your driver gets a train of messages, coming from upper layers (TCP, IP,
qdisc)

It can know that a packet is not the last one, by looking at
skb->xmit_more.

Basically, aggregation logic could use this signal as a very clear
indicator you got the end of a train -> force the xmit right now.

To disable gso you would have to use :

ethtool -K wlan1 gso off



--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux